[jboss-user] [EJB 3.0] - Junit failed.

[samwan809]

Hi,

I have the following problem when I tried to establish a JNDI connectoin from a remote machine to the EJB3 JBOSS server thought JNDI.

# ant test
Buildfile: build.xml

compile-test:
    [javac] Compiling 4 source files

test:
    [junit] Testsuite: Client
    [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
    [junit] 
    [junit] Null Test:  Caused an ERROR
    [junit] Client (wrong name: com/ip6networks/calling_card_registration/test/Client)
    [junit] java.lang.NoClassDefFoundError: Client (wrong name: com/ip6networks/calling_card_registration/test/Client)
    [junit]     at java.lang.ClassLoader.defineClass1(Native Method)
    [junit]     at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
    [junit]     at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
    [junit]     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
    [junit]     at java.lang.Class.forName0(Native Method)
    [junit]     at java.lang.Class.forName(Class.java:247)
    [junit] 
    [junit] 
    [junit] Test Client FAILED

BUILD SUCCESSFUL
Total time: 4 seconds

Main program:
# cat Client.java
package com.ip6networks.calling_card_registration.test;

import  com.ip6networks.calling_card_registration.test.Calculator;
import  com.ip6networks.calling_card_registration.test.CalculatorRemote;
import  com.ip6networks.calling_card_registration.test.ServiceLocator;

public class Client
{
   public static void main(String[] args) throws Exception
   {
      Calculator calculator = getSession();
      System.out.println("in Client class");
      System.out.println("1 + 1 = " + calculator.add(1, 1));
      System.out.println("1 - 1 = " + calculator.subtract(1, 1));

   }

      private static Calculator  getSession() throws Exception {
             Calculator  mgr = null;
             mgr = (Calculator) ServiceLocator.getInstance().getService("Calculator");
                if (mgr == null) {
                        //throw new SystemErrorException("Unable to connect to service");
                        throw new Exception("Unable to connect to service");
                } else {
                        return mgr;
                }
        }
}

It complained ServiceLocator..... cant be casted to Calculator.

Here is the ServiceLocator program:

# cat ServiceLocator.java 
package com.ip6networks.calling_card_registration.test;
 
 import javax.naming.Context;
 import javax.naming.InitialContext;
 import java.util.*;
 import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.Log;

public class ServiceLocator {
    private Map<String, java.lang.Object> cache;
    private static ServiceLocator ourInstance = new ServiceLocator();
    private static final Log logger = LogFactory
        .getLog(ServiceLocator.class);

    public static ServiceLocator getInstance() {
        return ourInstance;
    }

    private ServiceLocator() {
        this.cache = Collections.synchronizedMap(
                new HashMap<String, java.lang.Object>());
    }

    public java.lang.Object getService(String serviceName) {
        String serviceHost = "192.168.1.242";
        if (this.cache.containsKey(serviceName)) {
            return this.cache.get(serviceName);
        } 

            try {
                java.lang.Object service = this.getContext(
                        serviceHost).lookup(
                                serviceName + "Bean/remote");
                cache.put(serviceName, service);
                return service;
            } catch (Exception e) {
                e.printStackTrace();
                logger.error("Unable to bind to service "
                                   + serviceName + ". Hostname: " + serviceHost, e);
                return null;
            } catch (Throwable e) {
                e.printStackTrace();
                logger.error("Unable to bind to service "
                                   + serviceName + ". Hostname: " + serviceHost, e);
                return null;
            }

    }

    public java.lang.Object getService(String serviceName, String serviceHost) {
        String key = serviceHost + "." + serviceName;
        if (this.cache.containsKey(key)) {
            return this.cache.get(key);
        } else {
            try {
                java.lang.Object service = this.getContext(
                        serviceHost).lookup(
                                serviceName + "Bean/remote");
                cache.put(key, service);
                return service;
            } catch (Exception e) {
                logger.error("Unable to bind to service "
                                   + serviceName + ". Hostname: " + serviceHost);
                return null;
            }
        }
    }

    private Context getContext(String serviceHost) throws javax.naming.NamingException
    {
        Properties properties = new Properties();
        properties.put(Context.INITIAL_CONTEXT_FACTORY,
                       "org.jnp.interfaces.NamingContextFactory");
        properties.put(Context.URL_PKG_PREFIXES,
                       "org.jboss.naming:org.jnp.interfaces");
        properties.put(Context.PROVIDER_URL, serviceHost + ":1099");
        return new InitialContext(properties);
    }
}


Thanks
Sam

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